Here is something very quick and easy but with a great effect.
I got this beautiful cookie jar (for a forth of it's original price!) and just played around.
On Karen's Blog (The Graphics Fairy) you can find a lot of great images and typographies that will fit this purpose. I simply printed a great "Chocolat" image with frame on marbled, brown paper, ripped off the excess around the image and used Mod Podge to glue the image onto the clean glass jar.
I used out door Mod Podge, so the jar can be cleaned with water without the image coming off. But you still have to be careful.
While getting wet the glued area can get white. Just let it dry. I avoid rubbing or drying with a dish towel.
Just brush some Mod Podge on the backside of the image, place it on your jar, press out the bubbles and cover the image and about an inch around it with another two to three layers of MP. This way the paper is protected.
Also try out other materials than glass....
Have fun! ;)